CHemsitry

alloy

solution of two metals or a metal and a nonmetal that has the properties of a metal

atom

smallest particle of an element that has the properties of that element

chemical equation

expression in which symbols and formulas are used to represent a chemical reaction

chemical formula

combination of chemical symbols usually used to represent a compound

chemical symbol

shorthand way of representing an element

chemistry

study of what substances are made of and how they change and combine

coefficient

number placed in front of a symbol or formula in a chemical equation that indicates how many atoms or molecules of the substance are involved in the reaction

colloid

homogeneous mixture that is not a true solution

compound

two or more elements chemically combined

element

simplest type of pure substance

endothermic reaction

chemical reaction in which heat energy is absorbed (take on)

exothermic reaction

chemical reaction in which heat energy is released (given off)

heterogeneous matter

matter that has parts with different properties

heterogeneous mixture

mixture that does not appear to be the same throughout

homogeneous matter

matter that has identical properties throughout

homogeneous mixture

mixture that appears to be the same throughout

insoluble

unable to be dissolved in water

mixture

matter that consists of two or more substances mixed together but not chemically combined

molecule

combination of atoms formed by a covalent bond

pure substance

substance made of only one kind of material having definite properties

solubility

maximum amount of solute that can be dissolved in a definite amount of solvent at a specific temperature

soluble

able to be dissolved

solute

substance that is dissolved in a solution

solution

homogeneous mixture in which on substance is dissolved in another substance

solvent

substance that does the dissolving in a solution

subscript

small number place to the lower right of a chemical symbol that gives the number of atoms of the element in the compound